Rotary steam-engine



H e ,e h S w E e e h S 2 N M L m m E WT .Y m T O R (No Model.)

No. 601,696. Patented Apr. 5, 1898;

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UNITED STATES PATENT vOFFICE.

ANTON ZWIEBEL, OF BURLINGTON, WISCONSIN.

ROTARY STEAM-ENG l N E.

SPECIFICATION forming part of Letters Patent N0. 601,696, dated April 5,1898. I Application filed April 29, 1897. Serial No. 634,401. (Nomodel.)

T0 at whom it may concern.-

Be it known that I, ANTON ZWIEBEL, a citizen of the United States,residing-at Burlington, in the county of Racine and State of Wisconsin,have invented certain new and useful Improvements in RotarySteam-Engines; and I do declare the following to be a full, clear,andexact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention has relation to rotary steamengines; and the object is tosimplify the construction and to provide a valveless engine which may berun with a minimum amount of steam expenditure and generate a maximumamount of force or power.

With this object in view the invention con sists of certain features ofconstruction and combination of parts, which will be hereinaft'er fullyset forth and claimed.

In the accompanying drawings, Figure 1 is a perspective view of myimproved rotary engine. Fig. 2 is a longitudinal sectional view of thesame. Fig. 3 is a detail perspective view of the rotary piston removed.Fig. 4 is a cross-section through the engine.

In said drawings, 1 denotes the engine-cylinder, 2, its base orpedestal; 3, the cylinderheads; 4, the rotary piston, and 5 the pistonrod, to the outer end of which is adapted to be secured apower-transmitting device or mechanism,illustrated in the presentinstance as a pulley 6. p

The piston on one end is provided with a semicircular recess whichextends about half around that end of the piston, and one end wall ofthis recessis vertical to form a steamimpacting shoulder 7, while theother end wall is inclined to form means for actuating theimpacting-heads hereinafter described.

The side wall of this recess is provided for a portion of its lengthwith transverse apertures 8, which communicate with vertical apertures9, arranged directly below the steaminlet port 15. The other end of thepiston is constructed in identically the same manner with the exceptionthat the recess is on the opposite side of the piston.

7 denotes the impacting-heads hereinbefore referred to. These heads arepivoted in the ends of the casing and extend the full width oftherecesses in the cylinder.

A rod 12 is supported upon the cylinderhead by a spring-actuated cap 13,and the ends of'this rod are provided with links 14, connected to theimpacting-heads.

1O denotes exhaust-ports in the cylinder.

In operation as the steam enters the cylinder through its steam-port itpasses through one series of verticalapertures and is conducted outbetween the impacting-shoulder at one end of the piston and theimpacting head which is'located in that particular re: cess. The steam,being confined between these impacting surfaces, will rotate thecylinder, and as it is being rotated each successive vertical aperturewill be presented to the steam-inlet. I When the last aperture of thisseries has passed the steam-inlet port, the steam acts expansively frompoint A to point B in the rotation of the piston. At the very instantthe actuating-shoulder of the piston touches the impacting-head that hasjust been performing its duty theimpacting-head at the other end of thecylinder will drop downward and engage the recess at that end of thepiston, and the steam will then be conducted through the other set ofvertical and transverse apertures between the impactingshoulder of thepiston and the impactinghead, and the operation will be identically thesame as hereinbefore described.

By connecting the impacting-headswith the bar it is evident that whenone head is raised the other will be positively lowered into on gagementwith the opposite recess, thus making it impossible for theimpacting-heads to fail in their operation by being clogged withlubricants.

Although I have specifically described the construction and relativearrangement of the several elements of my invention, I do not desire tobe confined to the same, as such changes or modifications may be made asclearly fall within the scope of my invention without departing from thespirit thereof.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a rotary steam-engine, the combination with a cylinder providedwith inlet and exhaust ports, of a rotary piston arranged within saidcylinder and provided at its ends on opposite sides with semicircularrecesses,

one of the end walls of each recess being provided with animpacting-shoulder and the other with an actuating shoulder, and theside wall of each recess being provided with transverse aperturescommunicating with vertical apertures arranged to come opposite theinlet-ports of the cylinder, the vertical apertures of one set being inline with the vertical apertures of the other set, and impacting-headssecured to said cylinder and adapted to successively engage the recessesof the piston, substantially as set forth. I

2. In a rotary steam-engine, the combination with a cylinder providedwith inlet and exhaust ports, of ,a rotary piston arranged Within saidcylinder and provided at its ends on opposite sides with semicircularrecesses, one of the end walls of each recess being provided with animpacting-shoulder and the other with an actuating-shoulder, and theside wall of each recess being provided with trans verse aperturescommunicating with vertical apertures arranged to come opposite theinlet-ports of the cylinder, the 'vertical apertures of one set being inline with the vertical apertures of the other set, impacting- ANTONZWIEBEL.

Witnesses:

EDWARD E. MILLs, EDWARD ZWIEBEL.

